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// Copyright 2016 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.android;
import com.google.common.base.Preconditions;
import com.google.common.base.Stopwatch;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.android.Converters.PathConverter;
import com.google.devtools.build.android.Converters.UnvalidatedAndroidDirectoriesConverter;
import com.google.devtools.common.options.Option;
import com.google.devtools.common.options.OptionDocumentationCategory;
import com.google.devtools.common.options.OptionEffectTag;
import com.google.devtools.common.options.OptionsBase;
import com.google.devtools.common.options.OptionsParser;
import com.google.devtools.common.options.ShellQuotedParamsFilePreProcessor;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
/**
* Parses android resource XML files from a directory and serializes the results to a protobuf.
* Other actions that depend on the same resource directory can then load the data from a single
* protobuf instead of reparsing multiple tiny XML files from source (proto loading is faster).
*/
public class AndroidResourceParsingAction {
private static final Logger logger =
Logger.getLogger(AndroidResourceParsingAction.class.getName());
/** Flag specifications for this action. */
public static final class Options extends OptionsBase {
@Option(
name = "primaryData",
defaultValue = "null",
converter = UnvalidatedAndroidDirectoriesConverter.class,
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
category = "input",
help =
"The resource and asset directories to parse and summarize in a symbols file."
+ " The expected format is "
+ UnvalidatedAndroidDirectories.EXPECTED_FORMAT
)
public UnvalidatedAndroidDirectories primaryData;
@Option(
name = "output",
defaultValue = "null",
converter = PathConverter.class,
documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
effectTags = {OptionEffectTag.UNKNOWN},
category = "output",
help = "Path to write the output protobuf."
)
public Path output;
}
public static void main(String[] args) throws Exception {
OptionsParser optionsParser = OptionsParser.newOptionsParser(Options.class);
optionsParser.enableParamsFileSupport(
new ShellQuotedParamsFilePreProcessor(FileSystems.getDefault()));
optionsParser.parseAndExitUponError(args);
Options options = optionsParser.getOptions(Options.class);
Preconditions.checkNotNull(options.primaryData);
Preconditions.checkNotNull(options.output);
final Stopwatch timer = Stopwatch.createStarted();
ParsedAndroidData parsedPrimary = ParsedAndroidData.from(options.primaryData);
logger.fine(String.format("Walked XML tree at %dms", timer.elapsed(TimeUnit.MILLISECONDS)));
UnwrittenMergedAndroidData unwrittenData =
UnwrittenMergedAndroidData.of(
null, parsedPrimary, ParsedAndroidData.from(ImmutableList.<DependencyAndroidData>of()));
AndroidDataSerializer serializer = AndroidDataSerializer.create();
unwrittenData.serializeTo(serializer);
serializer.flushTo(options.output);
logger.fine(
String.format("Finished parse + serialize in %dms", timer.elapsed(TimeUnit.MILLISECONDS)));
}
}
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